First, it depends on what areas you want to monitor.
Private individuals may not carry out video surveillance of areas used for general traffic. This is regulated in the Danish Video Surveillance Act.
For other areas, however, the law does not regulate when television surveillance is allowed. For such areas, the Video Surveillance Act only has an impact on whether there is an obligation to inform about the existence of television surveillance.
In addition, TV surveillance images must be stored, deleted, etc. in accordance with data protection rules. However, data protection rules do not apply to private individuals who carry out television surveillance as part of purely personal or household activities.
An example of a purely personal or household activity is:
After repeated break-ins, a family wants to set up cameras in the garden and in the driveway of their house to get pictures of the thieves. The video surveillance is legal, as these are not areas used for ordinary traffic. The cameras must be set up so that they do not record off-site, such as the pavement. The family’s storage of the recordings is exempted from data protection rules.
However, it is important to bear in mind that television surveillance will no longer be part of purely personal or household activities if the family shares video surveillance images with someone other than the police.
Note: The Danish Data Protection Agency is not a supervisory authority in relation to the Video Surveillance Act. If you believe that there is a violation of the rules of the Video Surveillance Act, you should contact the police.